There, is no operation of the dentist of more real and lasting benefit to the patient than that of filling rotten teeth.
A tooth that is well filled before its nerve is exposed, is as serviceable as a sound one, and nearly as durable. Its preservation lot many years is perfect and complete.
It is necessary, in the performance of this operation, to remove very carefully all rotten and foreign matter lodged in the cavity; to make the cavity of a dovetail shape, so as to retain the filling; to wipe it perfectly dry; and to press the gold in so as to make the cavity perfectly water and air tight. A tooth filled in this way may be preserved many years, and in many cases during life.
When decay has gone so fax as to expose the nerve and render a tooth painful, the nerve, in all cases, should be destroyed before the cavity is filled; otherwise there may be soreness, and sometimes extreme pain making the extraction of the tooth absolutely necessary.
A tooth filled after the nerve is destroyed is not as good as if filled before the nerve was exposed; the walls of the cavity are thinner and weaker, and consequently axe more liable to break and crumble away when brought into contact with hard substances; and the filling will be more likely to be loosened. There is likewise some danger of ulceration and absorption at the root of a tooth, when filled in this condition, which makes it very important that teeth should be filled early.
Gold foil is preferable to all other substances for filling teeth. If it is properly dressed and polished, it will remain in the mouth for many years without any sensible loss of its substance. INSERTIMAGE
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